The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1977
Filed:
Jun. 06, 1975
Yamakawa Industry Company Ltd., Fuji, JA;
Nifco Inc., Tokyo, JA;
Abstract
Disclosed are a strainer and a method of injection-moulding the strainer of plastics. A strainer according to this invention comprises a pair of semi-cylindric shells integrally and movably connected along their adjacent longitudinal sides in the state of being developed; top and bottom circular boards integrally connected to the top and bottom frames of one of said semi-cylindric shells; and nets integrally connected to each of said semi-cylindric shells. This developed structure of the strainer makes it possible to injection-mould a semi-product of strainer as a whole in a single injection-mould die, and a so moulded and developed strainer is easily assembled in the final and complete cylindric shape by simply closing the semi-cylindric shells and integrally connecting them along their abutting longitudinal sides.